PREn Archives - MetalTek Making a Lasting Difference Thu, 07 Dec 2023 20:56:59 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.4 https://www.metaltek.com/wp-content/uploads/2020/12/favicon.png PREn Archives - MetalTek 32 32 What Is Pitting Resistance Equivalency Number (PREn)? https://www.metaltek.com/blog/what-is-pitting-resistance-equivalency-number/ Tue, 01 Dec 2020 20:47:32 +0000 https://metaltekwww.wpengine.com/?post_type=blog&p=2933 The Pitting Resistance Equivalency Number (PREn) is an objective way to do an initial comparison of the relative resistance to corrosion of various metals. It is based on a calculation that considers the weight percentage of alloying elements. Pren Number Formula: PREn = % Cr + (3.3 x % Mo) + (30 x % N)…

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